Dating-stamp lock



A. MILLER.

DATING STAMP LOCK.

APPLICATION FILED APR. 23, 1919.

,35 r PatentedSept.7,1920.

HIE.

I INVENTOR By W ATTORNEYS warren srares AUGUSTUS MILLER, ornASroR NGE, NEW'JERSEY. I

DATING-STAMP LOCK.

assesses;

Specification of Letters Patent. Patefitgd' Sept '7 19211 Application filed April as, 1919. Serial No; 292,015.

To aZZ "whom it may concern Be it known that I, AUGUSTUS MILLER, a

citizen of the United States, and a resident of East Orange, county of Essex, and State of New Jersey, have invented a new and l mproved DatingStamp Lock, of which the following is a full, clear, and exact descrip tion.

This invention relates to dating stamps and more particularly to a locking means for use in connection with dating stamps.

in object of this invention is, to provide means for use in connection with conventional and standard type dating stamps for locking the type in alined printing position It is also an object of this invention to provide a locking device which may be mounted upon the available space of the base plate ofordinary dating stamps, and which will compressibly engage the several type carrying belts of the dating stamp for holding said belts in fixed relation for the purpose of preventing displacement of the printing type from their properly alined service position. I

With the above and other objects in view,

this invention has relation to a certain combination and arrangement of parts to complete the locking means, used in connection with a dating stamp, an example of which is described in the following specification, pointed out in the appended claims and illustrated in the accompanying drawings, wherein Figure 1 shows a well known type of' dating stamp in front elevation, with the locking attachment comprising my invention, installed upon the base of sald stamp.

Fig. 2 illustrates a vertical sectional view of the dating stamp with the locking device shown in sectional View.

Fig. 3 is a perspective view of the looking attachment shown separate and apart from the dating stamp, with parts of the stamp mechanism shown in dotted lines.

Referring further to the drawings, and more particularly to standard types of dating stamps, the numeral 1 illustrates the frame member of said dating stamp, the lower frame portions being adapted to support and guide a base 2 in its upwardly swingingmotion when it is moved into op eration.

The base 2 of the stamp is provided with an opening 3 through which the type carrying belts are adapted to expose the printday and year uponjpaper.

ing face of type to be impressed against a surface, such as paper, to be printed. Drums or rollers 4 are rotatably mounted between upright spaced supporting brackets 5. The drums or rollers 4 are provided for carryingthe-belts which mount the type. The belts are designated by the numeral 6 upon which are fixed the printing type 7,

The belts and type are made of flexible material and adapted to' be passed around the drums selectively exposing any desired numbered type through the printing opening The lower roller 4 is so disposed in the opening. of the base as to bring the printing face of the type into the plane of the surface to be'printed.

Dating stamps of the character described are usually provided with one or more dated or numbered belts. Each belt andtype set is carried upon separate drums, and each drum is provided with a notched or ser rated adjusting wheel 8. By proper selection of the numbered or dated belts and its.

adjusting wheel, the operator is able to ex pose and move into printing position any desired number for impressing the month, The printing mechanism is adapted to, undergo an upwardly turning motion through an arc of 180 degrees for bringing the printing type into contacting position with the inking surface 9 usually provided in the upper portion of the stamp. w

After a dating stamp has been used for some time the drums and type carrying means correlated therewith become worn which causes looseness in fit. Therefore, an old dating stamp will not usually print straight, line impressions, but will present irregular and improperly alined printing type against the paper. The date carrying belts can be reset very conveniently through the use of the wheels 8 but they will not maintain their fixed position since the dating mechanism has lost its characteristic of firmness and friction.

It is, therefore, an object of my invention, as heretofore pointed out, to provide a Simplified form of locking means to be mounted upon the base of an ordinary dating stamp and used in connection therewith for the express purposeof locking one or many date carrying belts in fixedandimmovable position relatively to the surface upon which a printed impresslon 1s to be made.

I With further reference to the drawings and in particular to Fig. 8, there is shown a locking member or. dog comprlsing a body portion with an integral pressure head 16 and integral toe 17. This dog is provided with pivot pintles 18 which may be inter.

V grally formed therewith. A carrier bracket 20 is provided withupturned ears 21 integrally formed at each end thereof. Small bores are drilled through the upturned ears and pivotally support the pintles of the dog thus confining the dog in a movable relation upon the carrier bracket. The base 20 of the carrier is nrovided with suitable bores for the purpose of receiving screws used for securing the locking device to the dating stamp. The dog is provided with a fingers piece 14 which may be integrally formed with the dog by punching it therefrom during the manufacturing operation. This finger-piece can be engaged by the finger or thumb of the operator and swing the dog in outwardly disengaged position away from the belts. The dog is further provided with notches 13 to accommodate the ad usting wheels 8. Thus the pressure head 16 will -plane, the locking dog will be caught by the fin 'er- Jiece 1 k and aivoted outwardl about the point 18. This will permit a new arrangement of the dating device after which the do w1ll a ain be swung into lockin 5 b t) '9 position and compressibly engage the belts as clearly shown in ig. 2. In this figure is shown the actively engaged position of the dog against the datebelts, and in dotted linesis shown the outwardly disengagedposition thereof.

The locking dog under the expanding pressure of the spring forcibly engages the belt keeping it in frictionally engaged relation with the rollers, and so frictions as to securely hold the roller and belt in an immovable relation thus preventing displacement of the printing type. alinedat the printing plane. This form of locking dog attachment is mounted upon the base 201, the stamp by screws or other suitable means,

and is accommodated upon; the available space of the stamp base. The attachment undergoes the upwardly swinging motion of the base and stamping means, and does not interfere in any way with the operation 1 of the dating stamp.

The device may be built into a dating stamp as a unitary part, or may be installed thereupon as a separate attachment depending upon the need and desire feltior irnv provements in this field of industry. The invention will fill a long-felt want in correcting errors and the usually poor operation of the dating stamps in present day use.

I-laving thus described invention, what I claim as new, and desire to secure by Let-- ters Patent is a 1. A locking means for use on a dating stamp which, has a printing mechanism mounted on a swingable base, comprising a bracket fixed upon the available space of the base, a-dog pivoted on the bracket, a spring disposed between the bracket and the dog for exerting pressure against said dog to confine it in engagement with the printing mechanlsm.

2. A locking dog for use in connection with a dating stamp, where the dating stamp comprises a number of printing belts carried on spaced drums, said printing mechanism being carried on a swingingly mountedbase, comprising in combination; a bracket fixed to the base, a dog pivoted on the bracket and reaching upwardly, an engagement head made on the upper end of the dog to contact the printing belts below the tangential contact of the belts with the cylinder, a to e made on'the f lower end ofthe dog,- and a spring fixed'on the base beneath the toeto exertpressure on the dog to forcibly thrust the engagement head against the printing belts. L I

AUGUSTUS MILLER; 

